The Minnesota Vikings' MVP running back might be forced to suit up again this week with limited practice time. Peterson, dealing with a groin injury, missed practice Wednesday and coach Leslie Frazier wasn't sure when he would he would practice again this week and is holding out hope for Peterson to be ready by Sunday's game at Green Bay.

Frazier wasn't sure how much work Peterson will be able to get in this week. Peterson missed Thursday and Friday's practices last week and struggled with the injury in Sunday's game, rushing 21 times for 65 yards. Peterson said after the game he missed opportunities to break long runs because of the injury.

"I'm feeling pretty good," Peterson said. "I'm just taking it one day at a time and getting the necessary rest and getting the treatment and things I need to be ready to roll on Sunday."

Peterson has averaged 115.5 yards per game in 13 career games against the Packers. He had 13 carries for 60 yards and a touchdown in the previous meeting between the two teams at the Metrodome on Oct. 27.

That game against Green Bay was in a stretch of three games in which Peterson never received more than 13 carries or had more than 62 yards as the reigning MVP and his blocking hasn't been able to find the same traction it did when Peterson rushed for the second-highest, single-season total in NFL history last season.

Peterson ran for 409 yards against the Packers in the two regular-season games last year and then was held to 99 yards in the playoff game at Lambeau Field. After the stretch of 26 total carries in three weeks, Peterson has topped 20 carries each of the past three games and played through the groin injury Sunday.

"I mentioned on Monday the groin has been bothering him," Frazier said. "We'll see what we need to do this week. Is he able to practice today or tomorrow, or do we hold him back until Friday? We'll make that determination this afternoon when we sit down and talk with our trainers."

The Vikings were also without receiver Greg Jennings on Wednesday. Jennings, tied for the team lead with 34 catches, missed last week's game with an Achilles injury. Frazier said Jennings could return to practice in advance of Sunday's game at Lambeau Field, which would be Jennings' first game back at Lambeau Field as an opposing player after seven years with the Packers.

"I'm not sure if he'll make it today," Frazier said before practice. "We're hoping to get him out there tomorrow, but he had some soreness this morning. He's getting some treatment now. We'll see if he's able to go this afternoon, but we may just hold him and get him a full day."

Center John Sullivan was held out and still hasn't passed his concussion testing and Frazier was unsure of his status. Linebacker Erin Henderson didn't practice and his absence was not injury related, according to the team's injury report. Tight end Rhett Ellison (ankle), defensive tackle Fred Evans (knee/shoulder), defensive tackle Letroy Guion (chest) and linebacker Michael Mauti (knee) were limited on Wednesday. Mauti was added to the injury report for the first time.